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Perciformes/Notothenioidei (Icefishes) >
Channichthyidae (Crocodile icefishes)
Etymology: Channichthys: Greek, channe, -es = an anchovy + Greek, ichthys = fish (Ref. 45335); panticapaei: Named in honor of the famous British ichthyologoist J.R. Norman, who made a considerable contribution to the study of Antarctic fish (Ref. 27675).
Issue
Validity of species questionnable (Ref. 45488).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien demersaal; diepte 112 - 154 m (Ref. 90860). Deep-water
Southern Ocean, Sub-Antarctic: Kerguelen Islands.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 40.2 cm TL mannelijk / geslacht onbekend; (Ref. 90860); 36.1 cm TL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 6 - 8; Dorsale zachte stralen (totaal) : 32 - 34; Anale zachte stralen: 29 - 32; Wervels: 55 - 57. This species is characterized by the following: D VI-VIII,32-34 (total); A 29-32; pectoral-fin rays 20-22; vertebrae: 55-57. It is distinguished by the following characters: interorbital width wide, 4.4-5.4 times in HL, wider than horizontal orbit diameter; eyes moderate in size, orbit 5.4-6.5 times in HL, and 2.6-3.1 in snout length and 1.1-1/4 in interorbital width; posterior edge of maxilla extending below 1/2 of the orbit diameter; two rows of rakers on the lower part of 1st gill arch on ceratobranchial and hypobranchial: 11-17 rakers in anterior row, 6-15 in posterior row, 18-31 total; first dorsal fin high, 3.2-5.1 times in SL, with 1st to 3rd spine longest; fin membrane of D1 not reaching tips of longest spines; well separated dorsal fins, posterior edge of D1 fin membrane not reaching 1st ray base of D2; very developed thick rounded bony plates in anterior part of median lateral line; strong bony tuberculation on frontals, dorsal spines, branchiostegals, pelvic rays, maxilla and dentary. Coloration dark-gray to uniformly blackish. (Ref. 90860, 90861, 90862).
A thalassobathyal, and planktivorous species. Stomach contents contain macroplankton, Parathemisto gaudichaudi and Thysanoessa macrura. It matures at about 30 cm TL (27 cm SL) and spawning probably takes place in June-July. Caught by bottom trawls. (Ref. 90860).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Shandikov, G.A., 1995. A new species of icefish, Channichthys panticapaei sp. n. (Channichthyidae, Notothenioidei) from the Kerguelen Island (Antarctica). Proceedings of the Southern Scientific Research Institute of Marine Fisheries & Oceanography (YugNIRO). Kerch. Special issue (1):1-9. (Ref. 90860)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00126 (0.00058 - 0.00275), b=3.47 (3.29 - 3.65), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).
